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March 7，The newly built smart greenhouse of bet365 online sports betting mobile College is launched。The greenhouse covers an area of ​​about 3000 square meters，Ji Soilless Cultivation、Automatic water and fertilizer management、Precise environmental control、Real-time data monitoring and other smart functions in one，Evergreen crops all year round，Meet the teaching and scientific research needs of teachers and students。Future，The greenhouse will also serve as a practice base for labor agronomy education in primary and secondary schools in Beijing，Open to off-campus。

Located behind the library in the northwest corner of the Agricultural College campus，A building about 3 stories high、Spacious and bright glass room，This is the brand new smart greenhouse。The cold outside is still there，The room is as warm as spring，Tomato seedlings poke their heads out from the cultivation frame，Growing vigorously。"These buttons are to control the visor、Bow box and water circulation，Start bet365 online sports betting mobilewith one click。”The open space on the side of the greenhouse，Deputy Director of the Academic Affairs Office of the school、Li Zhimin, the head of the Labor Education (Practical Teaching) Center, is trying out smart devices with the staff。Behind them，Place labeled with nutrient solution、Fertilizer、Big bucket with words such as irrigation water，Each one is as tall as a person，Connected to the bottom of the cultivation rack through pipes。

The newly built greenhouse is full of high technology。for example，In order to ensure spring crops all year round，Regardless of the outdoor temperature，The indoor temperature should be maintained at around 20 to 30 degrees Celsius。“The key lies above the head。"Introduced by Li Zhimin，Compared to the single-layer glass roof of ordinary greenhouses，The roof of the smart greenhouse uses multi-layer covering materials，The first layer is an inflatable film，Good light transmittance and thermal insulation performance；The second and third layers are opaque black film and reflective film respectively，Plays the role of heat transfer and insulation，“When the weather is warm，The two layers of film were recycled and folded，Wait until evening or when the temperature cools down，The shed film will open like an electric curtain，Put a layer of insulation quilt on top。" he added，There is also a window ventilation system bet365 online casinoon the roof，Ensure indoor air circulation。

Today，A practical teaching class is held in the greenhouse，Associate professor Liu Chaojie of the School of Plant Science and Technology of the school led undergraduate students majoring in horticulture to carry out the planting of tomato seedlings。“The fruit and vegetable hanging vine rock wool cultivation system is installed on the cultivation frame，Contains automatic water supply and drainage、Water and fertilizer integration and other automatic control equipment。"Liu Chaojie instructs students to transplant tomato seedlings into rock wool soaked in water，Carefully dust off excess soil，“The roots of the plant will slowly take root in the rock wool，No longer needs soil to provide nutrients，Once the automatic control system detects plant water shortage、Lack of nutrition，It will be automatically replenished。”He said，In the future, students will be led to develop new varieties and research and test new planting technologies here。

The greenhouse can not only meet the needs of on-campus teaching and scientific research，It will also become a new classroom for primary and secondary schools in this city to carry out labor and farming education。Currently，The school has established relationships with some schools，With the activation of smart greenhouse，More primary and secondary school students will enter the fields，Feel the charm of smart agriculture。

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